Tesla Motors again struck a chord with the sleek Model 3 electric car but it's still not enough to compete on price and convenience with mass market gas-powered cars, says auto tech researcher.

In 2015, gas prices fell below $2 per gallon in Moscow Mills, Missouri. The trend of low gas prices across the United States delay a signature Obama proposal to reduce emissions from cars and trucks.
Whitney Curtis/ReutersMarch 24, 2016